Evidence map›Paper›PMID 37424476›Full record

ArticleJournal of Parkinson's disease2023

Serum Uric Acid as a Putative Biomarker in Prodromal Parkinson's Disease: Longitudinal Data from the PPMI Study.

Christos Koros, Athina-Maria Simitsi, Nikolaos Papagiannakis, Anastasia Bougea, Andreas Prentakis, Dimitra Papadimitriou, Ioanna Pachi, Ion Beratis, Evangelia Stanitsa, Efthalia Angelopoulou and 8 more

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Journal of Parkinson's disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.7field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
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  4. Machine learning-based non-invasive Parkinson's disease diagnostic model using clinical blood biomarkers.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
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  10. Association between serum insulin-like growth factor 1 and osteoporosis risk in Parkinson's disease: a cross-sectional study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 4 institutions in 2 countries.

Christos Koros1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Athina-Maria Simitsi1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Nikolaos Papagiannakis1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Anastasia Bougea1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Andreas Prentakis1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Dimitra PapadimitriouNeurology Clinic, Henry Dunan Hospital, Athens, Greece.
Ioanna Pachi1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Ion Beratis1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Evangelia Stanitsa1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Efthalia Angelopoulou1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Roubina Antonelou1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Marianna Bregianni2nd Department of Neurology, Attikon Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Konstantinos Lourentzos2nd Department of Neurology, Attikon Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Sokratis G Papageorgiou1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Anastasios Bonakis2nd Department of Neurology, Attikon Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Xenia Geronicola TrapaliNuclear Medicine Unit, Attikon Hospital, Athens, Greece.
Maria Stamelou1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
Leonidas Stefanis1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens, Athens, Greece.
National and Kapodistrian University of Athens · GRHenry Dunant Hospital · GRPhilipps University of Marburg · DEUniversity General Hospital Attikon · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe role of blood uric acid as a biomarker in symptomatic motor PD has been increasingly established in the literature.

objectiveOur present study assessed the role of serum uric acid as a putative biomarker in a prodromal PD cohort [REM Sleep Behavior disorder (RBD) and Hyposmia] followed longitudinally.

methodsLongitudinal 5-year serum uric acid measurement data of 39 RBD patients and 26 Hyposmia patients with an abnormal DATSCAN imaging were downloaded from the Parkinson's Progression Markers Initiative database. These cohorts were compared with 423 de novo PD patients and 196 healthy controls enrolled in the same study.

resultsAfter adjusting for age, sex, body mass index, and concomitant disorders (hypertension/gout), baseline and longitudinal serum uric acid levels were higher in the RBD subgroup as compared to the established PD cohort (p = 0.004 and p = 0.001). (Baseline RBD 6.07±1.6 vs. Baseline PD 5.35±1.3 mg/dL and Year-5 RBD 5.7±1.3 vs. Year-5 PD 5.26±1.33). This was also true for longitudinal measurements in the Hyposmic subgroup (p = 0.008) (Baseline Hyposmic 5.7±1.6 vs. PD 5.35±1.3 mg/dL and Year-5 Hyposmic 5.58±1.6 vs. PD 5.26±1.33).

conclusionOur results indicate that serum uric acid levels are higher in prodromal PD subjects with ongoing dopaminergic degeneration compared to those with manifest PD. These data indicate that the well-established decrease in the levels of serum uric acid occurs with the transition from prodromal to clinical PD. Whether the higher levels of serum uric acid observed in prodromal PD may provide protection against conversion to full-blown clinical PD will require further study.

Indexed as

Parkinson DiseaseREM Sleep Behavior DisorderAnosmiaBiomarkersHumansProdromal SymptomsUric AcidBiomarkersUric AcidhyposmiaProdromal Parkinson’s diseaseREM sleep behavior disorderuric acid

Identifiers

PMID37424476
PMCPMC10473106
OpenAlexW4383101796

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.